phpseclib a large prime can cause a denial of service

Description An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560. References https://nvd.nist.gov/vuln/detail/CVE-2024-27354 https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b https://github.com/phpseclib/phpseclib/blob/master/phpseclib/Math/PrimeField.php#L49 phpseclib/phpseclib@2870c8f phpseclib/phpseclib@ad5dbdf phpseclib/phpseclib@c55b751 https://lists.debian.org/debian-lts-announce/2024/03/msg00002.html https://lists.debian.org/debian-lts-announce/2024/03/msg00003.html https://github.com/FriendsOfPHP/security-advisories/blob/master/phpseclib/phpseclib/CVE-2024-27354.yaml GHSA-hg35-mp25-qf6h